Electricity Review

What is the basic unit of electric current?

• Volt

• Ampere

• Ohm

• Watt

What happens in an open circuit?

• Charge flows freely (it is on)

• Charge stays the same

• Charge cannot flow (it is off)

• Charge is increased

What does an open switch in a circuit indicate?

• The circuit is closed

• The circuit is open

• The circuit is functioning

• The circuit is complete

What is the effect of resistance in a circuit?

• It increases current

• It decreases voltage

• It opposes the flow of current

• It stores energy

What happens if any part of a series circuit is 'open'?

• Only that part stops working

• The entire circuit continues to work

• All components of the circuit will NOT work

• The circuit becomes a parallel circuit

What is constant in a series circuit?

• Voltage

• Current

• Resistance

• Power

What is constant in a parallel circuit?

• Voltage

• Current

• Resistance

• Power

What is Ohm's Law?

• V = I / R

• V = I * R

• R = I * V

• I = R / V

Electrons flow from.....

• Positive to negative

• Negative to positive

Current flows from.....

• Positive to negative

• Negative to positive